Calculating-machine.



PATENTED MAR. 27, 1906. Y H. HANSON.

CALCULATING MACHINE. APPLICATION FILED AUG. 13, 1900.

PATENTED MAR. 2'7, 1906.

H. HANSON.

CALCULATING MACHINE.

APPLICATION FILED AUG.13, 1900.

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CALCULATING MACHINE APPLIGATION FILED AUG.13. 1900.

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H. HANSON. CALCULATING MACHINE. APPLICATION FILED AUG.13, 1900.

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PATENTED MAR. 27, 1906.

H. HANSON. CALCULATING MACHINE.

APPLICATION FILED AUG.13, 1900.

8 SHEETS-SHEET 'l.

PATENTED MAR. 27, 1906;

H. HANSON. CALCULATING MAGHINE. APPLICATION FILED AUG.13. 1900.

8 SHEETS-SHEET 8.

HANS HANSON, oriiinvnnnronis, MINNESOTA.

'CALCULATtNG-MAGHtNE,

Specification of Letters Patent.

Patented March. 53'? 193% Application filed August 13. 1900.. Serial No, 26,686.

To all whom it may concern: Be it knowmthat I, Hans HANSON, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in a Combined Type- Writing and Computing Machine; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has for its especial object to provide an improved combined type-writing and computing machine. Its most radical features of novelty are threeto wit, connections between the computer-keys and the numeral-keys of the type'writer of such a character that the operation of the computerkeys will operate the numeral-keys and through the same the printing devices of the type-writer forlboth listing and adding the numbers, but that the numeral-keys of the type-writer may be operated without operating the computer-keys, thus permitting the type-writer to be always available for its ordinary use; carriage-locating and line-spacing devices subject to a common hand-lever for effecting the line-spacing and positioning the type-writer carriage and the register-carriage in proper positions for completing the registration of the numbers and for starting the next line; a slip-motion device in the drivingconnections between the two car riages operative to hold theregister-carriage stationary while the type -wri'ter carriage moves forward one or more feed-steps, thus making punctuation or wide spacing possible between the columns of the listed numbers.

'to the trade as the Blickensderfer, some parts being broken away and others removed. Fig. 2 is a side elevation of the parts shown in Fig. 1. Fig. 3 is a vertical section a proximately on the line 90 of Fig. 1. ig. 4 is a horizontal section approximately on the line 00 00* of Fig. 2, some arts being shown in full. Fig. 5 is a vertica section on the line cc :rf" of Fig. 4. Fig. 6 is a vertical section .on the line as :0 of Fig. 7 is a detail in plan with parts broi away,showing a portion oi the register. Fi

8 is a view in front elevation with some parts broken away, showing the register. Fig. is a vertical. section on the line in (c of Fig. 55. Fig. 10 is a transverse vertical section approximately on the line 90 20 of Fig. 9. Fe.

. u n O a g n 11 is a vertical section on the line 9; re oi Fig. 8. Fig. 12 is a vertical section on the line r X12 of Fig. 8. Fig. 13 is a transverse vertical section approximately on the line as 93 of Fig. 1, some parts being removed. Fig. 14 is a transverse vertical section on the line cc :0 of Fig. 4, some parts being re moved. Fig. 15 is a section on the line r w of Fig. 10, some parts being remoi Fig. 16 is a section on the line at a of 15. 0;" m" of Fig. 4. Fig. 18 is aii edge elevation of the so-called "register-retaining' device. Fig. 19 is a vertical sect-ion approximately on the line at 05 of Fig. 4; and Fig. 20 a view corresponding to Fig. 5, but illustrating a modified construction.

The construction and operation oi" the type-writer illustrated in the drawings will understood by persons familiar with type- .writers, and a description thereof Wlll here be but briefly given and only to such extent as deemed necessary in order to give a clear understanding of the relation of the attacin ment or calculating mechanism thereto.

' The frame of the combined type-writer and w":

adding-machine is made up of a base 1 and an elevated table 2, connected to said base by columns 3. The numeral 4 indicates the type-writer carriage, which is mounted suitable guides 5 on the table 2, is normalli put under strain to move toward the left by spring 6, and is provided with an escz penieij I rack 7, an impression-roller 8, and other d vices not necessary to specify. The num 9 indicates a sliding plate mounted in able guides 10 on the table 2 and, as she n, provided with a orojecting rib 11, ag which the longitiidinally-extended portion r i a bail 12, pivotally mounted on the t} writer carriage 4-, normally engages. y means of a boll-crank 13 a spring-pressed p 14 is connected for movement to the slidi plate 9. A spring-pressed retaining-paw also normally engages the escapement-i' 7. Short reciprocating movements of slide 9 simply cause the dr vin -pawl 1a reciprocate dl'iil illlpttrt the step-ny-step Fig. 17 is a vertical section on the line movements to the rack 7 and carriage 4. EX- treme movements inward of the slide 9 cause a projection 16 on the bell-crankj13 firs't to strike and release the pawl 14;" from. the rack 7,and then cause the said pawl 14 to engage the retainingawl 15 and release the-same also from s ai rack. These long and short movements of the slide 9 are imparted as hereinafter described. The rdinary keys of this type-Writer are indicated by the numeral 17, the lower row (marked on .the machine with the successive numerals 'or digits from 1 to 9, inclusive} being those which are used to print the numerals indicated. The

numeral 18 indicates a spacingbar, which is in the form of a bail pivoted to-brackets 19 on the table 2, as shown at 20. The numeral 21 indicates in diagram the type-head supported by an oscillating support 22, pivoted to a bracket 23 on the table .2 as shown at 24.-

With this class of type-Writer the depression of any one of the keys 17 will cause the selected character of the head 21 to move against the impression-roller 8. Also the depressien of any one of the said keys 17 or of thespacing-bar 18 will, through connections not. necessary for the pur oses of this case to consider, impart those s ort movements to the slide 9, which, as before indicated, actin through the bell-crank 13 and driving-paw 14, impart thestep-by-step feed movements to the type-writer carriage 4. It will of course be understood that the spacing-bar 18 and the keys 17 are spring-held upward.

Theroller 8 has a ratchet-wheel 8, which is moved by apawl-eq'uip ed arm 8 In the application of the ca culating attachment, as shown, the bail 12 has a rigidly-secured arm 12, The free ends of the arms 8 and 12 are connected by a link 12*, shown as pivoted to the former and having the hooked end engagin a in 12 on the latter. My improved calcu adding attachment will now be considered. This calculating mechanism in its most approved form and as applied to a type-writer comprises a register made up of a series of sections, a bank of digit or computer'keys in- -dependent of the numeral-keys of the typewriter, a difierential feeding mechanism, a

register-carriage with connections whereby it is moved form the ty e-writer carriage, including a' so-called w reel-mover, which is moved longitudinall by said register-carriage and is rotated y said differential feed device and operates upon the wheels of the lefthand side of the typewriter and comprises a series of register-wheels or' annular counting members a, located in axial line ating mechanism or and rotatively mounted on the laterallys aced partition-plates a. The partitionp ates a are secured at their ends on a pair of s acing-rods 11 which in turn are secured at t eir ends to a pair of laterally-spaced bearing-plates a supported at their bases by the type-writer base 1. These counting-wheels a are thus. mounted for independent rotations. On their peripheries they are provided with ten teeth or projections a and between these teeth they are marked with the successive digits from O to 9. Each wheel a is also provided with several internal and transversely-extended teeth 0?, sharpened at their ends for a purpose which will hereinafter appear. A casing a, with removable cover a, which, as shown, is held in place by hooks a and cooperating pins a,is provided to inclose the register and other parts hereinafter noted, and the said cover a is provided with a slot or sight-opening a through which in the normal positions of the counting wheelsa the zero-marks thereof appear in a row, as shown-in Fig. 1.

Forcooperation with the series of counting-wheels a is a carrying mechanism. (Best shown in Figs. 8, 9, 10, and 12.). For each counting-wheel (1, except the one at the lefthand end of the series, is a carrying-lever a,

as shown, approaching in form a semicircle, and each pivoted on a spacing-rod a, to which rod, as shown, depending prongs of the bearing plates a, are also connected. The carrying-levers a are subject to light springs a, (best shown in Figs. 7 and 9, but also in Fig. 4,) which springs are shown as secured to the bearing-plates a and serve to frietionally hold the said levers either in the position indicated by 'full lines in Figs. 9 and 12 or in the position indicated by dotted lines in Fig. 9. Each lever a is provided with a cam-lug a, and the cooperating wheels (1 are provided on their adjacent faces with cam pins or projections a. The cooperating pins and the cam-lugs a- (Ware so related that the pin= of a given wheel will engage the cooperatingllug and force the lever a into its dotted-line position, Fig. 9, under that step of movement of that particular counting-wheel which moves its notation 9 from and its notation 0 to alinement with the sight-opening a Each register-wheel a is also provided, as shown, on its right-hand face with a ten-toothed ratchet-wheel a, and each carrying-lever a is provided at its outer free end with a pawl a", which enga es the ratchet-teeth a) of thecoo 'eratin 'wheel a. These pawls a" have depen ing en s a, that are subject to light s rings 0), carried by the levers a and normal fy causing thesaid pawls a". to keep engagements with the ratchetwheels 01*.

When one of the register-wheels a is given its tenth unit of movement from zero, the.

action of the cam-pin a on the lug a of the cooperating lover a will set the carryinglever in what maybe termed a set or ar- I 1g position. (Shown by dotted lines in F g. 9.) The pawl (1 ot the lever is thus set to act upon the teeth a of the reg'ster-wheel act the nexthigher order, but the carrying onto the wheel of higher order will not be accomplished until the said lever is returned to its normal position. The devices whereby the register-wheels are given their step-bystep or units of movement under the control of the differential teed dev ce and whereby the carrying-levers are later restored to as best shown in Fig. 9.

normal positions to carry the tens onto the wheels of higher order will be set forth later on.

After a computation or addition has been made it is desirable to return or to restore all of the register-Wheels to their 78I0 positions. To accomplish this, each re" ter-wheel is provided, as shown on its right-hand face, with nine pins or projections a spaced apart to correspond in degrees to the spacing of the ratchet-teeth a), the space where the tenth tooth would naturally come being left clear,

Secured on a transverse shaft a, mounted in the bearing-plates a and provided with an outer end knob a, is a series of spur-gears (1 corresponding in number to the number of counting-wheels (1,. These gears a have each nine teeth, a tooth being omitted at one point. (Indicated at '0 in Fig. 9.) The teeth of the gears a are adapted to intermesh with the pins a of the corresponding wheels (1; but in the normal positions of the said parts, as shown in Fig. 9, each stands out of l ne of movement of the other. When, however, the wheels a have turned from their normal positions, the turning movement of the wheels (0 will engage the pins o of such wheels and will ttirn them to their normal positions, while any wheel a which may have been left standing at zero will not be moved.

In order to permit the return movements of the register-wheels a, the pawls (L must be released, and this is sinuiltaneously accomplished by means of a bail (L25, which is pivoted on a rock-shaft a and the upper transverse bar portion of which is engageable with the depending tail portions of of the sa d pawls. 11) is rigidly secured on the shaft (t just inward of the left-hand bearing-plate a. (128 indicates a bell-crank pivoted on the rod (1,", before noted. At one end the bell crank a is provided with a roller a, wh'ch works in a recess a in the said cam-d sk. The other.

arm of the bell-crank a normally engages a pro'ection e from the bail o 16H the shaft a is turned, together with the gears a, the cam-disk (1 acting through the bell-crank 0, will move the bail 0 thereby. releasing the parts a" and holding the same re eased until one complete rotation A cam-disk a (best shown in F 1 has been made, at which. time the register- 1 wheels will all have been restored to normal or so-called zero positions. Attention is here further called to the fact that in the normal positions ol the parts, as shown in Figs. 9 and 12, the lugs a on the carrying-levcrs a engage back of the cooperating pins a of the corresponding wheels (t and prevent backward movements of the sa d register-wheels. Hence the said lugs a act as stops to prevent the counting-wheels under return movements from being thrown beyond their Zero positions. Under the return movements of the register-wheels their peripheral lugs c" act on the alining finger 7 with a lit ting action, thereby raising the supplemental section y of the register-carriage on its pivotal bearings, thus permitting the whccl-lugs to pass.

Digit-keys. The digit or computer key levers of the calculating mechanism or attachment are indicated by the character 7), the same, shown, being pivoted to the rear portion of the base 1, as shown at I), and yieldingly held upward by a coiled spring At their free forward ends the keys areprovided with finger-pieces 5 located in a trans verse row just forward of the spacing-bar 18 of the type-writer. There are but nine of these keys I), and they are marked and appropriated to the successive digits 1 to 9, inclusive, as indicated by the numerals on. their finger-pieces b in Fig. 1. As will also be noted by reference to Figs. 1 and t, the digit-keys l) and the numeral-keys 17 of the type-writer, which bear corresponding numerals, stand in line with each other. These corresponding keysb and 17 are connected by separable hooks preferably formed as best shown in Figs. 2, 3, and 5, wherein Z) indicates light upright fingers carried by the'keys b and 17 indicates the depending link-sections pivoted to the type-writer keys 1?. The sections 6* and.17 are provided, respectively, with hooked ends b and 17*, which normally and under the action of gravity engage, as shown in the drawings, and connect the digit keys?) of the attachment and the numeralkeys 17 of the type-writer in such mannerthat when one of the keys 5 is depressed it will draw down the corresponding numeral-key 17, but when one of the said keys 17 isdepressed it will not act upon the corresponding key I).

By means of a bail b, the downturned prongs of which embrace the sides of thc'base 1, being pivoted thereto at. If, the books I)" 17 may simultaneously be disconnected, so that the depression of the digit or attachment keys Z) will not act upon the printing mechanism of the type-writer. This action is illustrated in Fig. 2 by dotted lines, which show the transverse bar portion of the bail 7) as thrown against the pivoted links 17, forcing them into inoperative positions. To set the bail b in either of its two positions, it is rovided with a laterally-springing arm I), aving a perforation adapted to engage with either of the pair of pins b on the adjacent side of the base 1. For a purpose which will presently appear the digit-key levers b are bifurcated, as shown at I). (See articularly Figs. 4, 5, and 6.) As shown, the key-levers I) work through a slotted guide-plate I), provided with a top bar I), which serves as a stop to limit the upward movements thereof.

Differential feed mechanism.The parts classified as within the differential feed mechanism are best illustrated in Figs. .4, 5, 6, and 17. The notation 0 indicates a rock-shaft which is extended transversely of the ma chine just over the outer ends of the key1e vers b and is mounted in suitable bearings 1 of the base 1. To'this shaft 0 is secured a series of curved cam-fingers 0, nine in numher, and working each through the bifurca tion I) of the corresponding digit-key lever b. The ends of the fingers c terminate, preferably approximately the same radial distance from the center of the shaft c; but from the left toward the right the said cam-fingers are curved successively one unit of movement farther on the line of a segment struck from the axis of the shaft 0, as best illustrated in Fi 6. Each key I) is provided with a camroller 0 mounted between the sides of its bifurcated section on a pin 0 These so-called cam-rollers 0 when the keys are depressed act upon the cam-fingers of the corresponding keys and serve to impart as many units of rotation to the shaft 0 as are indicated on the finger-pieces of the respective keys. A sprin 0 (see Figs. 3 and 6,) connected at one en to the base 1 and at its other 'end to a de 'endin arm 0 on the rock-shaft c, yieldingly olds t e rock-shaft and its cam-fingers c in their normal positions, (shown in the drawings by full lines,) in which position the stopfinger c on said shaft 0 engages a stop-pin c on the base 1, as shown in Figs. 5 and 6. Loosely mounted on one end, as shown the right-hand end of the rock-shaft c, is a spurwheel 0, which is provided with a ratchetwheel 0. On the same end of the shaft 0 adjacent to the ratchet-wheel c is a ri idly-secured arm 0"", having at its free end a pawl c, which by a spring a applied thereto and to said arm c is held for operation on thesaid ratchet-wheel. Each tooth of the ratchet wheel 0 represents one'unit of oscillatory movement of the rock-shaft c as imparted by the coaction of the cam-fingers c and the rollersc under the depression of the digitkeys. In the construction illustrated the spur-gear c meshes with a smaller spurgear a, secured for movement with alarge spur-gear a, both of which gears c and c are mounted on the stud c", projected from a bracket 0", supported by the base 1. A transversely-extended shaft 0, which, as shown, is angular or square in cross-section, is suitably journaled at its ends in the lefthand bearing-plate a iof the register and'in a similar bearing-plate i i, secured at the forward right-hand corner-of the machine-base 1. This shaft 0 is located with its axis coincident with the axis of the assage formed through the hub ortions o the countingwheels a of the register, as best shown in Fig. 10.. Also it will be noted that the right-hand bearinglate a is cut away at 3*, so as to leave a arge opening around the shaft 0". Secured at the right-hand end of the shaft 0" is a spur-gear 0 which meshes with the spur-gear c, hereinbefore noted.

With the feed mechanism just described it will be understood that when one of the digitkeys I) is depressed the shaft 0- will be rotated through as many units of angular movement as are indicated on the digit-key depressed. To illustrate: units of rotation or'angular movement of the shaft 0 make one complete rotation thereof. The depression of the digit-key marked 1 will cause the shaft 0" to be rotated one-tenth of a complete revolution, and the depression of the digit-key marked 9 will cause the said shaft 0 to be rotated ninetenths of a complete rotation. These state- -ments should be remembered for the reason that the rotation of the shaft 0", acting through the so-called wheel-mover l3, carried thereon, imparts the step-by-step or unit movement to the counting-wheels a of the register, as will later more fully appear.

When one of the digit-keys b is depressed, the pawl c of lever 0 acting on the ratchetwheel 0", turnsthe rock-shaft c as many units of movement as indicated on the key deressed. When the depressed key is reeased, it is thrown upward by the action of its spring b and the spring 0 becoming active, carries the rock-shaft c, pawl c, and other parts carriedthereby back to their normal ositions as limited by the stop 0 Thus y the action'of the keys I) and their rollers c on the curved cam-fingers c of the rock-shaft c and by the action of the awl c on the ratchet wheel c the differential feed movements are given.

Overfeed movements under the action of momentum are prevented by means of a stop device, which operates to positively intercept the movements of the shaft 0" at the proper times. Of the parts of this stop device, (Z indicates a wide-faced ratchet-wheel of rubber, leather, or other suitable material which is sutliciently rigid to maintain its form and sutliciently elastic to avoid shar concussions. This elastic ratchet-wheel d is secured on the end of the shaft c" outward of the gear 0 and preferably is thus secured between a pair of metal sides or disks (1', having telescoping screw threaded hubs (1 Those clamping members serve to hold the pliable or elastic ratchet-wheel d in form. The ratchet-wheeldhas ten teeth. Abail d",

Ten so -called Ico .to the mechanism illustrated in the other 9 carried by ill pivoted on the transverse shaft (1 hereto- 1 views, with certain exceptions, which maybe tore noted, is provided with an arm d, having a hooked end (P, which is normally held out of engagement with the teeth of the j ratchet d by a spring d, secured on the base i and engaging the transverse portion of the said bail d, as shown in Figs. 3 and 5. The said bail d is provided at its inner transverse portion with a flange 1 which is preferably faced on its upper and lower surfaces with rubber, leather, or similar material (Z to cushion the impacts which it receives. Said flange d underlies the outer ends of all of the key-levers b, and at the-extreme downward movement of any of the said keys it is engagedby the de ressed key, and by the movement of. the ail d caused thereby the hooked end (1 f the arm d is thrown into engagement with one of the teeth of the ratchet d, thereby intercepting and posiplace as it does at the final downward move-, I 7

ment of the depressed key 6, comes at a time after the full and proper movement has been imparted thereto by means v already described. then the bail d is depressed to its limit, it is temporarily locked down by a detent d, pivoted to a small standard (2 on the base and having at its free lower end a notch or houlder (1, which engages with the upper ransverse portion or" the bail (1 as shown in Fig. 1. A light spring (1", which, as shown,

connects said detent with the bracket c heretoforenoted, tends to draw the said detent into engagement with the said bail. Normally, however, the detent is held inoperative, as shown in Fig. 17, b means of a pin (Z of a short arm (Z carried by the rockshaft 0, which ;in engages a slot (Z of a link 11, the forwarc end of which. is pivoted to the upper end of said detent. The slot (1 is long enough to permit the free movement of the rock-shaft 0 when the keys are de ressed. Hence it will be seen that the ditierential ieed-shaft c is locked by thedeviee just. de-

"ibed from the time that the depressed key t reaches the limit of its downward movement until the said key and the rock-shaft e have returnedto normal position.

To prevent accidental movements oi. the teed-shaft c" at times when it is not locked by the device just described, one of the clamping-disks d is provided with ten pe-. ripheral de 'essions (1 with which the free end of a ir "tion-spring d, secured on the base 1, is arranged to engage. This frictional retainer is very easily overcome by the feed movements and does not increase materially the force required to operate the differential feed mechanism.

The modification in the diiierential feed mechanism illustrated in Fig. 20 is similar briefly noted, to-wit: The curved cam-fingers c on the rock-shaft c are curved forward instead of rearward. The cam-rollers c are so arranged. that under a depression of the keylevers the said rollers will carry the pawl c backward over the teeth of the ratchetwheel 0 and the feed movement will be given under the action of the spring a when thekeylever is released or thrown up. This modification has the advantage that no matter how quickly a key may be depressed the feed movement will always be the same, as the same depends on the tension of said spring 0 becoming operative upon the release of the key. Further, in this modification the arm (Z 'on the rock-shaft 0 extends downward instead of upward, a leaf-spring 12 is applied to the detent (1 instead of the coiled spring (1, (shown in the main views,) a stop-pin c is located in frpnt instead of to the rear of the arm 0, and the dog d operates on the rear in stead of the forward side of the ratchet wheel d.

Register-carriage and connectionsr l hese parts are best shown in Figs. 3, 4, 5, 7, 10, 12, and 13. A pair of parallel guide-rods f we tend crosswise of the machine and are supported in the frame-plates o and l", hitherto noted. The register-carriage is mounted for transverse traveling movement on the said rods f as guides and is made up of what may be termed the body or primary section, a supplemental or relatively shiftable section, and a wheel-mover subject to and movable with said supplemental section. Said primary section of said register-carriage includes a rack f with end pieces or heads f that slide upon the guide-rods The supplemental or relatively shiftable section of said registerearriage includes an alining plate 9 with alining-finger 9 a cross-bar g with brackets g having-o en seats g", which rest on the inner guide-r0 s f, and open seats 9 which rest upon the outer guiderodf, thus affording a free pivotal mounting for the said supplemental section of said carriage, as best shown in Figs. 3 and 5. Said brackets project forward and work within elongated notches cut in the rack-bar f, as best shown in Fig. 13. The raek-har f is provided with a bell crank latch-lever g at its right-hand end, the upper latch-arm of which is engageable with the right-hand member of the brackets g on the supplemental section of the register-carriag'e to lock the supplemental seetion with its said end brackets bearing against the left end walls of the notches g", or, in other words, at the extreme left of its shiftable travel relative to the main orbody section of the carriage, the purpose of which relations of said parts will more fully appear in tracin -the operation of the machine. Said bell-crank lever g is subject to a spring the rack-bar f" and tending to force the latch into its lowermost position for engagement behind the adjacent bracket g? The lower arm 9 of said bellcrank latchlever g is in position to engage a spring-finger g, projecting toward the left from the frame-plate 1, as best shown in Fig. 13, when the carriage is at its extreme righthand oridle position, so as to unlatch the said lever and hold the same with its latch-arm g in its uppermost or inoperative position against the tension of its depressing-spring g The forward edge of the alining-plateg is adapted to engage the forward members of the peripheral teeth a on the counting-wheels a, and the alining-finger 9 carried by said plate g, is adapted to engage the rear members of the air of said teeth a, between which the sald parts 9 and g 'travel when the carriage is moved to the left; thereby in: suring the alinement of the counting-wheels a and holding the same against displacement in either direction after the same have been properly positioned by the wheel-mover k or thecarrying-levcrs a. Otherwise stated, the said alinin members 9 and 9 do not interfere with t e proper rotation of the wheels (1 under the control of the wheel-mover k or the carrying-levers a. Moreover, the pivotal mounting of said alining members 9 and 9 prevents the finger 9 from interfering with the return of'the counting-wheels to their zero position.

In the forward lower edge of the aliningplate g is a notch g, as best shown in Figs. 7, 10, and 18, to pass the peripheral teeth a of the counting-wheels a when rotated by the wheel-mover 7c, and depending from said plate 9 to the left of the notch g, as best shown in Fig. 18, is a lug g, which in turn is spaced apart from the crooked right-hand end of the alining-finger 9 thereby leaving a passage g, through which the peripheral teethe of the counting-wheels a may pass when being rotated by the carrying-levers a. For action on said carrying-levers a there is attached to the head-pieces f of the primary section of the register-carriage a rod 9 having the left projecting end thereof bent forward at an angle to afford a cam g, which when the carriage is moved toward the left into its initial position for a new line acts in succession on the set members of the carrying-levers a to carry forward onto the counting-wheels the tens for the last previous line, as will be more rcadily'understood when the operation of the machine issu nmarized. c

The wheel=mover is is in the form ofa sleeve ofproper shape in cross-section to fit the angular shaft 0 and to slide freely thereon, but be subject thereto for rotation therewith. Said wheel-mover It has a ten-toothed head at its left, the ten notches 7c of which are adapted to. register with the internal teeth a of the counting-wheels a, as best shown in Fig. 15. The supplemental section of the register carriageto wit, the right hand bracket g hasa depending arm k, which engages with an annular groove 16*, formed in the right-hand end of the. sleeve or wheelmover is. It follows from this construction and relation of the said arts that the wheelmover 1c is subject to t e supplemental section of the register-carriage and will be made to-move with the carriage transversely of the machine on its su portin shaft 0", and thereby the toothe head 3 of the wheelmover will pass through the central openings of the countingwheels 'a, and thesaid head h will be made to engage with the said counting-wheels in succession and become operative to turn the same under the rotation of the shaft 0 It should benoted that the relation of the wheel-mover to the carriage is,

such that the head k of the wheel-mover always stands vertically in line with the notch the passage of the peripheral teeth a of the particular countin -wheel a subject to the head 10 of the whee -m0ver k.

The alining-plate gof the supplemental section of the register-carriage is provided with a pointer-finger g", (best shown in Fig. 10,) which works through a slot 9 -and cooperates with a scale 9 on the register-cover, as best shown in Fig. 1, to indicate the position of the register-carriage and serves to show" the operator when the wheel-mover is-brought into position for engagement with the lefthand member of the counting-wheels required for any given line. Otherwise stated, it indicates Whenthe wheel-mover is set for action on the proper denominational member of the counting-wheels.

The reciprocations of the register-carriage are limited by end stops (marked, respectively, h and h) fixed,respectively to the adjacent frame-plates 1 and a as best shown in Fi s. 4and 13.

A utter-spring 7L2 encircles the forward guide-rod f, as best shown in Figs. 4 and 10, and serves to yieldingly hold the register-carriage at the instant when a slip-motion device comes into action for permitting punctuation between the dollars and cents columns and for preventing movement of the carriage underthe effect of momentum when thecents are being listed, as will more fully appear when tracing the operation.

The register-carriage rece ves its motion Y from the type-writer carriage by means which will now be noted.

A shaft 'f", which for distinctionmay be called the escapement-shaft for the regis tercarriage, extends from front to rear of the machine below the type-writer table2 and g in the alining-plate g, which notch permits is supported in a forward bearing-bracket f and a rear bearing-bracket f both fixed to the bed 1 of the machine. To the forward end of said shaft f is fixed a gear f which engages with the teeth of the register-rack f as best shown in Figs. 4 and 13. The said shaft f is also provided with a gear f for another purpose, which will later be named. On the rear end of said escapernentshaftf is loosely mounted a spurgear f (best shown in Figs. 3, 4t, and 14,) which engages with another spur-gear f loosely mounted on the upper portion of fran'ie-braeket f A m pinionf provided with a flat toothless portionf ,-(best shown in Fig. 14,) is held for rotation with said gear f. The teeth of said pinion f 22 normally engage with the teeth f of the typewritercarriage rack-bar as shown inFig. l i. Said rack-bar f is secured to arod f by means of heads f sliclable on the rod, and equipped with set-screws f for securing the said raek to the said rod at any desired set position.- The rod f hasarmsf 2o rigidly connecting the same with the type writer carriage f, best shown in Figs. 1 and 2. It follows, of course, that the bar f 25 trav els with the type-writer carriage. The typewriter carriage is permitted a much greater 25 traveling movement than the register-carriage, and when the toothed portion f 24 of the rack runs beyond the pinion f the fiat surface f of said pinion will engage the smooth or toothless surfaeef of the rack-barf", and thereby the pinion f will be held or prevented froin rotation, while at the same time the type writer carriage is free to travel. Said rack-bar f is shown as provided with another set of teeth f to the left of its 3 5 smooth or toothless portion j, which teeth f can be brought in position for cooperation with the pinion f whenever so desired by properlysetting said rack-b ar j thereby rendering it possible to list parallel columns on a single page. The pivotal motion permitted to the raekbarf y its headsf connecting the same to the rod f enables this ad justment of the rack-bar to be readily made.

From the parts so far described it is obvious that when the toothed portion f of the rack-bar f is in engagement with the pinion f the said pinion and the f which is held to move therewith, will receive rotary motion under the travel of the type-writer carriage. This motion is transmitted to the escapement-shaft f" through a slip motion device which will now be described. 5 his slip-motion device is employed in order to permit a period, other 5 5 pi1actuation-mark, or space to be made to ap pear 0n the proof-sheet between the columns representing dollars and cents; otherwise the gear f on the shaft f, with which the gear f driven by the type-writer carriage, 6o imparts motion, might be rigid 'on the shaft and if the said gearf was rigid with the haftjthe machine would print whatis nsually termed solid matter, or, in other words, the figures would be closely spaced. ()5 Said slip-motion device includes, in addition to said gearf loose on the shaft-f a diskf', secured to the shaft f by a set-screw f as shown, and provided with two ratchet-teeth (marked, respectively, f and and with a shoulder f A larger disk f is fixed to the 7 hub of the loose gear f and on its profile-face carries a spring-pressed pawl f for eoopera tion with the said ratchet-teeth f' and f of the smaller diskf, fixed to said shaftf", as hitherto not-ed. Said larger disk f also has 7 a profile-pin f, which plays between the shoulder f of the smaller disk f and the ratchet-tooth f thereof. in the normal relation of the parts the pawl f engages the ratchet-tooth f, and the profile-pin f of the larger disk f engages with the shoulder f of the smaller disk, and thereby the two disks are locked together for positive movement with the shaft f in either dir'ectionof the latters rotation. For printing solid or 8 closely-spaced matter the said disks f and f wouldthus remain permanently locked together, and the action would be exactly the same as if the gearf was fixed to the shaft f i 9 A trip-lever f is pivoted to a framebracket and is subject to a spring 7', so applied as to hold said trip-lever in either of two extreme positions. (Shown by the full lines and the dotted lines,respectively, in Fig. 9 14.) The downward motion of the lever f is limited by a fixed stop f. The said lever f is shown in full lines in Fig. 14 in its idle or inope ative position, and when set for cooperation with the other parts of the slip-motion 1 device said lever f takes the position shown. in dottedlinesin said Fig. 14. When so set as shown in dotted lines in Fig. 14, the inner end. of said lever will project into the path of will thereby trip the same out from the ratchet-toothf and permit a limited slip motion, or,in other words, permit the diskf to move forward in respect to the smaller disk f until the pawl engages the next ratchcttooth f of said smaller disk, during which action the register-carriage and the shaft f are held from movement by the buffer spring 71 hitherto noted. The parts are so set andtinied that this slip niotionwill occur I at the right point to punctuate or space between the dollars and cents column.

('u rri (19( locating and tin (esmoi n g (In vi ("ca Thcse parts are best shown in Figs. 1, 3, 4, and 1,3. It has already been noted that the l escapemcn t-shaft 7 for the. register-earnage is provided nearits forward end with a gearj. Said gear f engages with a relatively large. gear 1", mounted for rotation with a lon slcevej, which in turn is mounted to slide in i and rotate on its three hearingdn'avkels f", fixed to the base i of the machine, as hosi shown in Fig. 2E. The gear) is connect ed wit h said sleeve j for rotation therewith by nieansof along key which D(K'H\llS\i.( lll- 1 the spring-pawl on the large disk j and [0 writer.

ing motion of the sleeve in respect to the gear as hitherto noted, and the said gear is held from sliding with the sleeve by the mounting thereof between the two rearmost members of the bearing-brackets f", as shown in Fig. 3. The forward end of a long rod 7 passes outward through the sleeve 7 and is provided with an end nut'f The sleeve f is provided with a handwheel -f, and the hub of this wheel is adapted to engage with the nut f 12 when the hand-wheel and sleeve are pulled outward, thereby enabling a longitudinal motion to be imparted to the rod 7. The rear end of the rod f works. through the bearing-bracket f 15 and then extends up ward at right angles with the vertical portion working between bifurcated or forked guide 7" fixed to the rear bearing-bracketf The upper end portion of the rodf is then again bent at right angles and extends inward and then downward, as shown at f", for engagement with the type-writer-escapement-releasing bail 12 and is then again bent at right angles to afford a projecting horizontal end portion f which engages in a notch or mouth formed in the rear edge of the escape- Inent-slide9 of. the type-writer, all as best shown iniFig. 3.

The line-feed pawl-lever 8 is connected by link 12 with the arm 12, projecting upward from the bail 1 2, as best shown in Fig. 2 and as, hitherto noted when describing the type- It is therefore of course obvious that a forward motion of the rodf will cause the part fthereof to engage and rock the bail 12 and its lever-arm 12, and thereby through the link 12 also to rock the line-feed lever 8 of the type-writer carriage as required to move the paper forward the re uisite distance to effect the line-feed. Tie forward motion of the rod f also causes thepartf thereof to force forward the escapement-slide 9 of the type-Writer, thereby rocking the hellcrank 13 and releasing'both the driving-pawl 14 and the locking-pawl 15 from the escapement-rack 7 of the type-writer carriage. The type-writer carriage thus being released from its escapement-rack may be moved in either direction by the rotation of the hand-Wheel f and the sleevef under the action of the connections therefrom; but the gear f which rotates with the sleeve f engages the gear f fixed to the escapement shaft f and hence t e said shaft and all the parts carried thereby will also receive rotary motion under the manipulation and rotation of the handwheel f. It follows, therefore, from the construction and relation of the said parts just hereinbefore described that both the typewriter carriage and the register-carriage are subject to the hand lever or whcelf and that by the rotation thereof the said typewriter carriage and the said register-carriage will be moved in opposite directions, and hence it further follows that by the manipu} and rod f'" and the connections therefrom serve to effect the line-feed and to properly locate both carriages for tie required actions therefrom.

Summary of operationw lhe action of the different groups of mechanism has been so fully stated in connection with the detail description that it is thought a brief summary of t e general operation will be sufficient. The idle position of the register-carriage is at the extreme right-hand limit of its transverse traveling movement, and wl en in this position the type-writer carriage will necessarily stand at the extremeleft of its travel in virtue of the connections between the typewriter escapement-rack and the rack of the register-carriage. If these idle positions of the two carriages be assumed as the startingpoint for tracing the operation, then the successive steps of manipulation would be as follows: The operator would first properly locate the two carriages and effect the linefeed of the paper on the platen by tle proper manipulation of the hand leverf otherwise'stated, he would pull out the hand wheel or lever f thereby pulling forward the rod f thus releasing the type-writer carriage and its escapement-rack and rocking the linefeed pawl-lever 8 as hitherto fully noted, and then while still holding the hand-wheel f in its outermost position he Would rotate t e'same, and thereby, through the gears f andj, impart rotary motion to the register escapement-shaftf and by the connections from said shaftf at the opposite ends thereof the type-Writer carriage would be moved toward the right into its proper initial position and the register-carriage be moved toward the left into its proper initial position, which would be indicated by the pointer g" on the scale g readable on the face of the register-cover, as hitherto noted. This initial position of the register-carriage would of course be one wherein the head 70 of tie wheel-mover would engage the proper denominational member of the counting-wheels a corresponding to.the left-hand number or column in the line of figures. Having thus effected the line-feed and properly located the two carriages, the operator pushes the hand-wheelf and the sleeve f 7 back inward to its limit or lets go of the hand-Wheel, whereupon the carriage motor spring 6,

through the bell-crank 13, Fig. 1, will affect said movement automatically, forcing rearward therewith the rod f in virtue of the mounting of the sleeve on the rod, and thus permitting the type-writer escapemen't-p'awls to rengage with their cooperating rack 7 and IlO si,sie

" all the parts into cooperative rela-ii It has been assumed that the count-x "f t'ion. un -w'heels were all in their-initial or zero po- .sitions. The operator thenmampulates the new e d n dei' f For examplei supgrose that. the num- 32496 istobe lists. .ointhe paper in the denominational wheel from the right, the operatoriirst strikes the computer-key 2 and follows with the computer-keys 4, 9, I and 6'. The depression ofeach computerthe 'typewriter Virtue of the hookirections .1 WhiCli l the same are hitherte ted,,'aiid henc'e tl"e printingdevices of the type-writer will be actu, ated in the usual way to print the corresponding numbers in the natural reading order, fer from left toward'the right. 'The escapee a5 ment movement of t? e type-writer under the I action of its numeral-keys will impart motion f to the escapeinenteshaft, f and this in turn "acting on the raokff ,of the register-carria e will 'iiio e the s'am 0.1 5 step toward t e at fthe same 'tir'rieithat'the type-writer carri'ag'e' 'is move'd'one stepjtoward the left.

FThe head of thewheehm over 7c is thus brought in succession into engagement with thepreper denominational members of the n manipulate the hand whee or lever f ,thus

again effecting the line feed 'of the paper on the type-writer and relocating the two carriages inthe proper positions for the next line'of numbers. 'Theke sfare then a ain I struck inthe natural re a ing order of t eir numbers, with the result thatthe second line "will be listed diiectlynnder the first, and the number or countin wheels will be properly actuated to count t 1e units in each denomination and to set the carrying-levers all as required to carry forward the tens to the higher orders in succession from the right toward the left at a later sta 'efto wit, when the registercarriage and t e type -,writer carriage are'reset into initial positions for the next line. l'nthis'car'ryin acti'oiitheinclined or ,6 5 cem acting end g of t e rodgfcomee in con;-

jso-calle'd digit or'compluter keys in the- 4 e-numbers in thepe-writer'an'd to beregistered on the counter The jtwoIcarriageshaving been;

prpperly set, as hitherto described, for making the wheel-rnover 7c to'act on the fourth keypulls down the corresponding numeral-. i

counting-wheels a, and when the computer- 1 tact in succession with the set members of the carrying-levers a and' by rocking the same back-into their normal positions causes the :pawls c thereof, engaging the ratchet-wheel za ofn the counting-wheel a of the next drigherorder, to move forward as required to .iarrythe tens. As only:one'counting-wheel a will be rotated at a time; the single notch or ,opeifingigbetween thelpartsg and 9 of the 1alining plate 9 (best 'shown in zFig; '18) will always afford the necessary clearance to pass the peripheral teeth a of the particular counting-wheel a which is being rotated by any set carrying-levera, subject to the cam end 9 of the rod g This is true even if all the register-wheels should have stood at 9 and one or more units should be added in the lowest denomination, for the reason that the said carrying-levers a are actuated in succession under the movement of the registercar'riage toward the left for assuming its initial position for the next line. Of course the register-carriage must always move far enough toward the left to actuate all of the carrying-levers an which may have been set under the initial rotation of the countingwheels effected under the manipulation of the computer-keys. When all the desired lines of "numbers have been listed, the operator again manipulates the hand-wheel f so as to effect the line-feed of the paper and to throw the register carriage to the extreme left-hand of its travel, or at least far enough to make sure that all the carrying-levers set when listing the last line of numbers will be actuated, so as to carry the tens and complete the addition on the register-wheels. The operator then notes through the sightopening what the proper reading of the total or aggregate number is and then operates the numeral keys of the type-writer to list the total at the foot of the column. Thisbeing done, the operator again manipulates the hand-lever f so as to restore the registercarriage to its right-hand or idle position the type-writer carriage to its left-hand or idle position. The operator then manipulates the hand-knob a and resteres all the counting-wheels to their zero positions; Edi the parts of the machine will then threadiness for listing and adding another set or se ries of columns of numbers, g The operation has been traced without regard to whether or not the numbers were to ter. The actionsare precisely the same, with the exception that if punctuation or spacing is desired between dollars and cents the triplever f is turned down into its dotted=line position, as shown in Fig. 14, for cooperation with the pawl f on the large disk j to trip the pawl and permit the same to slip from the tooth f to the tooth f of the smalls! disk f, as hitherto noted in describing the belisted as solid matter or as punctuated mat 'z'zzo said slip-motion device. WVhen this slip talr as 1 o in this machine.

=nections between the computer-keys and the place, the register-carriage stands stationary eing yieldin ly' held-by the h'uifer stopspring if, as hitherto noted, and hence the decimal or other punctuation key of the typewriter may be operated to print a decimal between the dollars and cents columns, or the space-bar of the type-writer may be actuated numeral-keys of the type-writer it must be obvious that the type-writer is always avail.-

able for use in the ordinary way without the operation of the computer,,while, on the other hand, that whenever the computer-keys areoperated the numeral-keys of the type-writer will also be operated when the connectinghooks between the said two sets of keys are left standing in the normal relative positions, and hence that the printing devices of the typewriter will be called into action and operate to list the numbers which are to be added, This relation of the type-writer to the computer is, so far as I know, broadly new. Otherwise stated, I am the first, so far as I know, to combine a type-writer and a computer by connections of such a character that the typewriter is always ready for use in the ordinary way without the actuation of the computer and that when the computer-keys are operated the double function will'be secured and that this single or double function is always available without requiring the manipulation of any shift-key or other interlocking or unlocking device. The described connections are also such that the connecting-hooks may be locked out of engagement whenever so desired to permit the computer to be used without listing the numbers, or, in other words, without operating the printing devices of the type-writer. The bail 6 serves to disengage the connecting-hooks b and 17 and hold the same separated, and a bail composed of the parts m m suspended from the escapementbar 18 of the type-writer, with its cross-rod m underlying all the computer-key levers b, renders the escapement action of the typewriter carriage available on the escapementshaft f and through the same on the registercarriage when the computer-keys are operated and'the connecting-hooks B and 17 a are disconnected, as shown in dotted lines in Fig. 2.

Having regard to'the reliability of the combined machine for both listing and adding the numbers, it should, be noted that in the Blickensderfer type-writer, as is Well known, the printing head 21 is positively held for synchronous movement with the type-writer key-levers, or, otherwise stated, a full stroke of movement as there are units representedv by the key being struck. These facts together with the described devices for preventing overrotation of the counting-wheels under the efiect of momentum and forpreventf ing backlash or accidental displacement thereof, all as hitherto described, positively insures thetrue and accurate countlng action of the register-wheels necessary to secure the reliable registration of the numbers eing listed and added. Attention is also specially called to the carriage-locating and line-spacmg devices hitherto described under that heading and the actions of which are also traced in the summary of the operation. So far as I know I am the first to have provided 'a common hand-lever with connections both to the type-writer carriage and the computercarriage and operative to'effect the line-feed on the type-writer and to locate the two carriages in their proper relative positions for completing the registration on the addingwheels and taking initial positions for the next line. This is a feature of large advantage for insuring increased speed by saving to the operator the time which would otherwise be required to handle the two carriages and to effect theline-feed, and is of even larger importance for always insuring the line-feed, and thus preventing piling, or, in other words, rewriting over a printed line. It also enables the operator to control the manipulation of the two carriages and eflect the line-feed with one hand, while the other is left free to handle his copy-slips, such as checks, way bills, &c. It is obvious of course that the connections between the hand-lever and the two carriages may be modified without departing from the spirit of this feature of the invention.

What I claim, and desire to secure by Letters Patent of the UnitedStates, is as follows:

1. The combination with a type-writer involving finger-op erated numeral-keys, of computing mechanism involving a register made up of a series of sections, a bank of finger-operated digit-keys having finger-pieces exposed where they may be struck by the fin ers, a difierential feed device actuated by sai digitkeys and operatin on said register-sections, and connections rom the type-writer carriage, whereby the step-by-stepinovement of said carriage will render said differential feed device operative on the sections of said register, in succession.

2. The combination with a type-writer involving a bank of numeral-keys, of comput- 1 ing mechanism involving a series of countingwheels, a wheel-movertmountedfor ,both' axial and rotary movements, an inde endent' bank of .finger operated; digit keys withcon or mpantinga stepeb nections to the corresponding numeral keys ofthe type-writer, a difierenti'al feed'device type writ er; carriage andgsaidl wheel-mover: tspniovement from- I leiittoward thearight to saidwheel=' mover, and rendering iityzoperative on said counting-wheels in successiom 14 w 3.. The combination witha-type Writer in volving finger-operated numeral-keys, of com' j puting mechanism comprising a bank of fine ger-operated digit-ekeys, with finger-pieces exposed .Wh'e-re theyzmay be struck by the fingers ,vandsconnections;between the numeral keys ofsaid;type writer-iand the corresponding digit-keys of said; com-p.11 ting mechanism,

l which 'connections cau-se the latter to operate the former, but perniit the former to be ope'r-' ated without operating the latter.

4. The combination withatypawriter, involving a carriagewand finger-operated n-umeral-keys, of calculating mechanism comprising an independent bank of finger-operated igit-Ykeys,hayringfinger-pieces exposed wherezthey may bestruck by the fingers, a, divided connection between said digit-keys and the corresponding;numeral-keys ofthe' type-writer, and means ;-for simultaneously disconnecting-the .sectionsot said divided conneotions, a t wi'1l 5. The combination with a type-writer in volving finger-operated numeral-keys, of cal- A culating mechanism comprising an independ ent bank of finger-operated digit-keys having:

finger-pieces exposed'where they may be" struck by the fingersfl a ,divided connection I between said digit-keys aijid the correspondfing numeral keys of the {type-writer, and a pivoted bail'engageable with said connections to render them operativegand inoperative, at will, said bail having a device for setting it in either of its-two positions; s

6. The combination with a type writer havin a carriage of a register involving 338B. ries oi sections, differential feeding mechanism, a wheel-mover movable step by step from one section :tothe other of said register, and connections between; said wheel-mover and the type twr iter.'.car riage, operating to :move the formerjstep by step over the sec tions of saidindic ator and then to leave the said wheel-mover standing idle upon the continued movement of the type wrlter carriage toward the left. 5

7. The combination with-a register made up of a series of counting-wheels, of a bank of dlgit-keys, a'rotary feed -shaft, a wheel-mover rotating. with and sliding on said feed-shaft for successive action. on said countingw heel, different al feed mechanism rotating Said,

Inn

feed-shaft, and an interceptingstop device ing-wheel's' and a key? operatedgdifi'erential' whe el i'r'ibver which operates n succession thereon, of'a se'ries'of ca ry'i ever'sadapt ion by the rotause - hand-operated means for restoriiig successively to normal position such carrying levers as have been set by the counting-wheels, thus effecting the carrying over of the proper amount from a lower to a higher. denominational order. j s s 9. The combination with a series of count ing-wheel's and a differential wheel-,mover which operates in succession thereon, of a se ries of carrying-levers arranged to be set in operative position by counting-wheelsof a given order, a paper-supporting carriage moving uniform-distances for letter-spacing, and means for restoring to normal position'such carrying-levers as have been set by the counting-wheels, saidmeans being operative during the return of the paper-supporting carriage to its initial position for starting a new line.

10. The combination with'a register made up of a series of adding-wheels and carrying devices, of resetting mechanism for said adding-wheels, comprising a shaft on which is rigidly mounted a series of mutilated gearwheels,-corresponding in number to the number of adding-wheels'and cooperative teeth or projections on said 'addin -wheels, said mutilated gear wheels and adding-wheels being capable of intermeshing with'ench other, and also capable of free movements, in which each set clears the other, without shifting the relative positions to each other of the shafts 01 supports of either set of wheels, and means for rotating the shaft on which said mutilated gears are mounted.

11. The combination with the countingwheels a having the carryingpins a, resetting-pinsc and teeth 0, of the carrying-le provided with the. pawls a acting upon said ratchet-teeth a, the shaita." with suitable finger-piece, the series'oi resetting-gears a cooperating with said pins (1/ as described, a pawl-releasing hail acting upon said pawls a", and a cam-disk onsaid shaft (1 having Connections for operating saidreleasing-bail, substantially as described.

'12. A register comprising a series of counting-wheels with a series of carrying-levers, ivlrich carrying-leversare set in carrying positions by wheels of a lower; order and carry onto the wheels of a higher order, .under movements from their carrying toftheir normal positions, in combination with a register-carnage haymga cam operating on said carrying-levers t nder, movements from the right toward'the'ie'ltt, means for imparting a step-by-step movement of said carriage from the left toward the right, a wheel-mover mounted to rotate with respect to, but to travel with said carriage for action on said counting-wheel, and differential feed snechanism for imparting the rotary feed11'1ovements. to said Wheel-mover, substantiallyas described. I

13. The combination with a type-writer, of a register involving a series of countingwheels and carrying devices, a register-carriage connected for movements with the type-writer carriage and provided with a suplemental sliding frame-section, a latch for ocking together the register-carriage and the supplemental frame, a trip for releasing said latch at one limit of movement, which latch becomes operative at the other limit of movement, a wheel-mover mounted to travel with said supplemental carriage-section for successive action on said counting-wheels, and

differential feed mechanism for rotating said wheel-mover, substantially as described.

14, The combination with a type-writer, of a registerinvolving a series of countingwheels andrcarryin'g devices, a register-carriage connected for movements from the left toward the right, under movements of the type-writer carriage from the right toward the left, which register-carriage has a sliding supplemental section, a latch for locking said sections of the register-carriage together, a trip for releasing said latch under the movement of said register-carriage to the extreme right, a rotary Wheel mover mounted to travel with'the supplemental register-carriage section for action on the countingwheels from left toward the right, and differential feed mechanism for rotating said wheeltion back to normal, at register-carriage connected for movements from the left toward the right, under movements of the typewriter carriage from the right toward the left, which register-carriage is provided with a sliding supplemental section and with a cam for action on said carrying-levers, under movements toward the left, a rotary wheelmover mounted to travel with said supplemental frame-section, and differential feed 1 mechanism forrotating said wheel-mover, substantially as described.

16.The combination with a type-writer having an escapemerit-controlled carriage, of a reglster involving a series of countingwheels, a reglster-carriage connected to the type-writer carriage for reverse a'iovements therefrom, a wheel-mover mounted to travel with said register-carriage for succve action on said counting-wheels, differentiai feed mechanism for rotating said wheelmover, and a handpi'ece mounted. for a compound movement and provided with connections to said register-carriage and to the typewriter esca ement, whereby one movement releases sai escapement and the other moves the register and type-writer carriages, substantially as, described,

17. The combination with a type-writer having an escapement-controlled carriage .and a roll-feeding ratchet, of a register involving a series of counting-wheels and carrying devices, a registercarriage connected for movements with the type-writer carriage, a wheel-mover traveling with said registercarriage for action on said wheel, differential feed mechanism for rotating said wheelmover, and a handpiece having connections to said register-carriage and to the escapement and ratchet devices of said ty e-writer, whereby one movement of said andpiece will release said escapement and actuate said roller-feed ratchet, and-the other movement thereof will move the register and typewriter carriages, substantially as described.

having a space-bar and escapement device, of an attachment comprising a register, a bank of digit-keys operating the numeralkeys of the type-writer, but permitting said numeral-keys to be operated"independently thereof, and a connectlon between the spacebar and escapement device of the typewriter and said inde endent bank of digitkc-ys, for operating t e former upon the deprrssion of any of the said digit-keys, whereby the computing mechanism is operative without actuating the print? devices of the type-writer.

19. Tl'ieeombination. with a "typewriter having a carriage, of an attachment comprising a register, a bank of di it-keys, denominational selecting mechanism controlled by the itype writer carriage, differential feed mech an ism controlled by said digit-keys, and :ction between the space-bar of the type-writer and the digit-keys of said attachment, for controlling the enominational se lei-ting mechanism through the movements of the type-writer carriage when operating the computing-machine without recording the l i gu res on tie paper in the type-writer.

20. The combination with a bankof digitkeys, of a rogistemnover having a ratchetwheel, a stop pawl or arm cooperating with said ratchet-wheel and subject to an T depressed digit-key at the limit of its ownward movement,diiferentiai feed mechanism controlled by said keys and operating on said registermiover, and a detent operative while the digitdiey is making its return movement,

18. The combination with a type-writer ICC 

